73731942
May 23, 1988
Feb 21, 1989
HERAEUS ELECTRO-NITE INTERNATIONAL N.V.
Active Trademark
HYDROGEN SENSOR SYSTEM FOR DETERMINING THE DISSOLVED HYDROGEN CONCENTRATION IN MOLTEN METAL COMPRISING A PROBE, A RECORDING MEANS FOR ANALYSIS AND VISUAL DISPLAY OF HYDROGEN CONCENTRATION AUXILIARY LIGHT AND BUZZER ASSEMBLY AND PRINTER
Electrical and Scientific Apparatus